Here's why it's difficult to pin down:
* Early inventions: Portable weighing scales have a long history, with rudimentary versions existing for centuries. It's hard to attribute a specific invention to a single person, especially in the past.
* Lack of documentation: Records of Black inventors, particularly in the past, are often incomplete or missing due to systemic racism and limitations in access to education and documentation.
* Incremental improvements: Portable weighing scales have evolved over time with many individuals contributing to their development. It's unlikely that a single person "invented" the modern version.
Important Note: It's vital to acknowledge the challenges faced by Black inventors historically and the lack of recognition they often received. Many contributions may have gone undocumented or been attributed to others.