Bip39 metal https://collinmmss433.lucialpiazzale.com/from-concept-to-fact-generating-bitcoin-addresses-with-bip39 Although it takes advantage of BIP32 strategy you may however import BIP39 seeds into Electrum wallet. Also apart from BIp32 there is BIP44 Variation which some wallet use to the technology of seeds. BitBox02 - A successor to the BitBox sequence, this components wallet sup... https://atavi.com/share/xbwf7vz16jgof