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Device for conditioning surfaces such as floors and the like

  • US 3,132,369 A
  • Filed: 12/22/1961
  • Issued: 05/12/1964
  • Est. Priority Date: 12/22/1961
  • Status: Expired due to Term
First Claim
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4. A DEVICE FOR CONDITIONING SURFACES SUCH AS FLOORS AND THE LIKE COMPRISING FRAME MEANS, MEANS ON SAID FRAME MEANS FOR SUPPORTING A SUPPLY OF SHEET MATERIAL, BACKUP MEANS MOVABLY SUPPORTED BY SAID FRAME MEANS, TAKEUP MEANS CARRIED BY SAID FRAME MENS, A WEB OF SAID SHEET MATERIAL PASSING IN ONLY A SINGLE THICKNESS OVER ONLY A PORTION OF SAID BACK-UP MEANS FROM SAID SUPPLY SUPPORTING MEANS TO SAID TAKE-UP MEANS, AND MEANS INDEPENDENT OF SAID SHEET MATERIAL FOR SELECTIVELY LOCKING SAID BACK-UP MEANS AGAINST MOVEMENT.

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