A stuck chainsaw ripcord is likely jammed. Remove the spark plug to see if that allows you to pull the cord. If it still won't pull remove the cover in order to see if the flywheel is able to move.
The purpose of a chainsaw sharpener is to help easily keep the chain blade as sharp as possible. A dull chainsaw blade will require more work from user to cut though wood and had a better chance of getting stuck in the wood.
Ripcord - 1979 VG was released on: USA: February 1979
You can buy the digital power launcher ripcord at amazon.com or ebay.com.
Battle of Fire Support Base Ripcord happened in 1970.
A ripcord is the part of a parachute pulled when the jumper is in the air to deploy the parachute canopy. (i.e., It opens the parachute when pulled)
Temple run
Ripcord - 1961 The Human Kind - 1.28 was released on: USA: 1962
Ripcord - 1961 Hostage Below - 2.11 was released on: USA: 1962
Ripcord - 1961 Radar Rescue - 1.13 was released on: USA: 1961
Ripcord - 1961 The Inventor 2-14 was released on: USA: 1963
Ripcord - 1961 Escape 1-18 was released on: USA: 1962
Ripcord - 1961 Derelict 1-11 was released on: USA: 1961