1978548

Information

• Patent Grant
• 1978548

• References
• Source

• Patent Number

  1,978,548

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1934
  90 years ago

• CPC

  • A63H33/002 - Devices for converting reciprocal or vibratory motion into rotary motion

• US Classifications

  • 446 - Amusement devices: toys