On your device there is usually a sticker next to the nameplate with a 2D bar code and the serial number (7-digit alphanumeric, i.e. numbers and capital letters).
The serial number on the sticker shown here is only an example!
Suitable products
Petrol Chain Saw
GC-PC 1335/1 I
GC-PC 1335/1 I
Petrol Chain Saw
GC-PC 1235/1 (non EU); EX; ARG
GC-PC 1235/1 (non EU); EX; ARG
Petrol Chain Saw
GMSE 1535
GMSE 1535
Petrol Chain Saw
GC-PC 1235 I
GC-PC 1235 I
Petrol Chain Saw
BL-BK 35
BL-BK 35
Petrol Chain Saw
GH-PC 1535 TC
GH-PC 1535 TC
Petrol Chain Saw
GC-PC 1435 I TC
GC-PC 1435 I TC
Petrol Chain Saw
GC-PC 1335 I TC
GC-PC 1335 I TC
Petrol Chain Saw
GC-PC 1435 I TC Kit
GC-PC 1435 I TC Kit
Petrol Chain Saw
BK 41-35
BK 41-35
Petrol Chain Saw
BKS 4135 WKS
BKS 4135 WKS
Petrol Chain Saw
GC-PC 1335 I TC Set
GC-PC 1335 I TC Set
Petrol Chain Saw
GC-PC 1435 I TC Set
GC-PC 1435 I TC Set
Petrol Chain Saw
GC-PC 1335/1 I Set
GC-PC 1335/1 I Set
Petrol Chain Saw
GC-PC 1235/1 (non-EU)
GC-PC 1235/1 (non-EU)
Petrol Chain Saw
BKS 1335 WKS
BKS 1335 WKS
Petrol Chain Saw
GC-PC 1335 TC
GC-PC 1335 TC
Petrol Chain Saw
BG-BKS 1335
BG-BKS 1335
Petrol Chain Saw
GC-PC 1535 I TC
GC-PC 1535 I TC
Petrol Chain Saw
N-PC 1535 TC
N-PC 1535 TC