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Books by Optische Anstalt C P Goerz Aktiengesellschaft (inventors).

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ORIGINAL PRINTED PATENT APPLICATION NUMBER 8,054 FOR AN IMPROVED DEVICE FOR FIXING INSTRUMENTS TO TRIPODS AND OTHER STANDS. (1909)
ORIGINAL PRINTED PATENT APPLICATION NUMBER 8,054 FOR AN IMP…
By: Optische Anstalt C P Goerz Aktiengesellschaft (inventors).
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