Index:United States patent 1220005.pdf

TitleUnited States patent 1220005
AuthorJames Harris Rogers and Henry H. Lyon
Year1917
PublisherUnited States Patent Office
LocationWashington, D. C.
Sourcepdf
ProgressTo be proofread
TransclusionIndex not transcluded or unreviewed
Pages (key to Page Status)
Sheet 1 2
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