Patents for Inventions: Abridgments of Specifications; Class 98, Photography; Period A. D. 1867-76 (Classic Reprint) - Hardcover

Inhaltsangabe

Excerpt from Patents for Inventions: Abridgments of Specifications; Class 98, Photography; Period A. D. 1867-76

Printing. Photo-mechanical. 67. 45. 71. 947. 968. 2844. '68. 1499. 2201. 2391. 2498. 2507. '69. 417. 806. 853. 1965. 2718. 3049. 3151. 3543. '70. 346. 2171. 2266. 2464. 2485. 3036. '71. 401. 540. 1409. 2799. '72. 73. 1395. 2848. 3654. '73. 615. 1954. 2468. 3449. '74. 1807. 3947. '75. 714. 1362. 1663. 2011 2613. 3453. '76. 1148.

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