4. E - Fixed Constructions
  5. 04
  6. B

David W. Akerson

E - Fixed Constructions – 04 – B

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Lay-in type suspended ceiling and panel therefor

E - Fixed Constructions – 04 – B
Patent

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Manufacture of film-covered material

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Patent

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Non-combustible hardboard sheet

D - Textiles – Paper – 21 – J
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Production of cushion and mattress constructions

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Patent

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Lay-in type suspended ceiling and panel therefor

E - Fixed Constructions – 04 – B
Patent

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Profile ID: LFCA-PAI-P-23316

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