4. Boots, shoes, and leggings

Harry G. Derks

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Asynchronous response system with acknowledge

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate

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Electrical teaching system

Patent

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Multiple site interactive response system

Multiplex communications – Special services – Conferencing
Patent

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Remote 2-way transmission audience polling and response system

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent

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Remote response system

Boots – shoes – and leggings
Patent

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Profile ID: LFUS-PAI-P-475721

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