4. B - Operations, Transporting
  5. 42
  6. F

Donald B. Mccallum

B - Operations – Transporting – 42 – F

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Hangable holder for stationery materials

B - Operations – Transporting – 42 – F
Patent

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Magnetic display board symbols

B - Operations – Transporting – 44 – F
Patent

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Storage system for punched data sheets

A - Human Necessities – 47 – B
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Profile ID: LFCA-PAI-P-512414

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