| 摘要 |
A sewing machine is constructed to receive the transmission of one or more of wireless switches, said one or more switches being used to transmit simultaneously. Sewing machines are transmitted to in various start and stop sewing operations by one individual operator and or a group of individual operators using their allocated sewing machines. A rechargeable battery is used. The speed controller is attached to the machine body. The receiver box supplies the voltage to recharge the battery for the transmitter.
|
