2639550

Information

• Patent Grant
• 2639550

• References
• Source

• Patent Number

  2,639,550

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1953
  71 years ago

• CPC

  • A01G9/242 - for greenhouses with flexible coverings
  • A01G9/227 - rolled up during non-use
  • Y10S135/903 - Roller-operated canvas

• US Classifications

  • 047 - Plant husbandry
  • 052 - Static structures
  • 135 - Tent, canopy, umbrella, or cane
  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • D25 - Building units and construction elements