The patent number is 5

and E-Z Mate®Mark II couplers

This is a Detail Associates 243 HO ACF 2970 Covered Hopper ACFX Kit

Trainz Product Id: 12516219

Micro-Trains 02000350 N New Haven 40' Standard Single Door Boxcar #36438 VariantsUnitPrice_number_20.30 The patent number is 5This is a Micro Trains 20350 N 40' New Haven Standard Single Door Boxcar #36438. This item features a plastic construction, plastic wheels, and knuckle couplers. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Micro Trains Model Number: 02000350 Road Name: New York New Haven & Hartford (NH) MSRP: $12. 99 Scale Era: N Scale Model Type: Freight Cars The Trainz SKU for this item is P12457289. Trainz