Index:Patent for an Indicating device US1298871.pdf

TitlePatent for an Indicating device US1298871
AuthorBornett L. Bobroff
Year1919
PublisherUNITED STATES PATENT OFFICE.
LocationWASHINGTON, DISTRICT OF COLUMBIA.
Sourcepdf
ProgressTo be proofread
TransclusionIndex not transcluded or unreviewed
Pages (key to Page Status)
(1) (2) 1 2 3
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