4. Typewriting machines
  5. Key-board or key lever-actuating mechanism

Product Engineering & Manufacturing, Inc.

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Environmentally safe machine control security switch

Typewriting machines – Key-board or key lever-actuating mechanism
Patent

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Facsimile and voice communications interface device

Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy
Patent

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Telephone answering system and apparatus for direct caller selec

Telephonic communications – Polystation line system – Call alerting
Patent

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Profile ID: LFUS-PAI-P-45930

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