4. Package making
  5. Means to open or erect receptacle
  6. Means to open envelope

H. Ross Williams

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Envelope opener

Package making – Means to open or erect receptacle – Means to open envelope
Patent

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Envelope opener

Cutting – Processes – With subsequent handling
Patent

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Programmable constant current “off hook” circuit

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

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Switching power supply for generating a ringing voltage

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

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Profile ID: LFUS-PAI-P-820623

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