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Patents > Year filed: 1908 & Number of text pages: 3-4 & Number of diagram pages: 3-10

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None (10) · FR 6.4 (6) · USPC 244/90R (3) · USPC 244/20 (2) · USPC 244/63 (2) · USPC 244/45R (2) · USPC 244/35R (2) · USPC 244/221 (2) · USPC 244/22 (2) · USPC 244/46 (2)
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