The Dental Cosmos, Volume 19

Front Cover
J. D. White, John Hugh McQuillen, George Jacob Ziegler, James William White, Edward Cameron Kirk, Lovick Pierce Anthony
S. S. White Dental Manufacturing Company, 1877
 

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Page 600 - Editor of American Journal of Microscopy. HOW TO USE THE MICROSCOPE. Practical Hints on the Selection and Use of the Microscope, intended for Beginners. Second Edition. Crown 8vo, cloth, y.
Page 163 - Time will only allow me to thank you, in conclusion, for the kind attention with which you have listened to my remarks...
Page 156 - In our judgment, if a party choose to withdraw his application for a patent, and pay the forfeit, intending at the time of such withdrawal to file a new petition, and he accordingly do so, the two petitions are to be considered as parts of the same transaction, and both as constituting one continuous application, within the meaning of the law.
Page 41 - I firmly believe that if the whole materia medica, as now used, could be sunk to the bottom of the sea, it would be all the better for mankind, — and all the worse for the fishes.
Page 152 - While it is true that the mere tact that a device has gone into general use, and has displaced other devices which had previously been employed for analogous uses...
Page 154 - ... foreshadowed the invention. Yet, taking the spring of 1855 as the time when it was completed, we find nothing in the proofs to justify a conclusion that Dr. Cummings was not the first inventor. It would answer no good purpose to review the voluminous evidence supposed to bear upon this branch of the case. We shall refer only to that which is deemed most important, and which has been most pressed upon us in this argument. Of the English patent of Charles Goodyear it is enough to say that, though...
Page 152 - We do not say the single fact that a device has gone into general use, and has displaced other devices which had previously been employed for analogous uses, establishes in all cases that the later device involves a patentable invention. It may, however, always be considered ; and, when the other facts in the case leave the question in doubt, it is sufficient to turn the scale.
Page 149 - There the invention is said to consist "in forming the plate to which the teeth, or teeth and gums, are attached, of hard rubber or vulcanite, so called, an elastic material," of certain capabilities mentioned. Not an intimation is given that any other substance than hard rubber, or its synonym, vulcanite, would meet the requirements of the invention. Throughout the specification the patentee speaks again and again of his invention as a...
Page 152 - The use of one material instead of another in constructing a known machine is. in most cases, so obviously a matter of mere mechanical judgment, and not of invention, that it cannot be called an invention, unless some new and useful result, an increase of efficiency, or a decided saving in the operation, is clearly attained.
Page 153 - Bank, the use of steel plates instead of copper for engraving was held patentable. So has been the flame of gas instead of the flame of oil to finish cloth. These cases rest on the fact that a superior product has been the result of the substitution, a product that has new capabilities and that performs new functions.

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